Flange, 4.5", Flat, Ground
Chemglass Flange, 4.5", Flat, Ground; 4.5in Ground Flat Flange, Tube ID: 99mm, Tube OD: 105mm, Mating end of flange has a ground surface to provide for a liquid tight seal when greased and clamped with the CG-139 horseshoe clamp. - CHMGLS
